A green and environmentally friendly water balance system for a sorting process

Abstract

The utility model belongs to the technical field of sorting procedure, especially relates to a sorting procedure green environmental protection water balance system, including the pit water storage area, the ore dressing operation main factory building, the roller grinding operation area, the high -placed water pool, the floating boat pump station, the concentration tank, the ring water pump house, the buffer pool, the floating boat pump station is located in the pit water storage area, the floating boat pump station connects the high -placed water pool, the high -placed water pool connects the ore dressing operation main factory building, the roller grinding operation area and the ring water pump house, the ring water pump house and the concentration tank are provided with near the ore dressing operation main factory building, the drainage of ore dressing operation main factory building passes through the tailing way and leads to the concentration tank, the concentration tank connects the ring water pump house, the ring water pump house connects the water inlet of ore dressing operation main factory building, the buffer pool is provided near the ring water pump house, the buffer pool connects the pit water storage area, the automatic liquid level device is equipped in the buffer pool, the roller grinding operation area connects the ore dressing operation main factory building. The utility model will effectively control production wastewater storage water level, effectively reduce enterprise new water unit consumption, effectively control production water and so on and discharge.

Description

Technical Field

[0001] This utility model belongs to the field of sorting process technology, and in particular relates to a green and environmentally friendly water balance system for sorting processes. Background Technology

[0002] Water balance plays a crucial role in mining production. Water is involved in every stage, from ore extraction and beneficiation to tailings treatment, and comprehensive water balance is key to achieving sustainable mining development, improving resource utilization efficiency, and reducing environmental impact. Especially in the beneficiation process, due to complex operating conditions (concentrate output, tailings output, tailings concentration, fresh water consumption, circulating water utilization rate, and wastewater discharge), failure to maintain a timely water balance can lead to significant energy waste and increased production costs. Therefore, maintaining a balanced water system is particularly important in daily production.

[0003] Further tapping into potential, effectively utilizing sedimentation water from abandoned mine pits, reducing fresh water consumption, efficiently utilizing recycled water, and eliminating the discharge of production wastewater are crucial aspects of sustainable mine development, particularly in water balance processes. The beneficiation process is a vast and complex system. Sedimentation water from mine pits can replace fresh water used for cleaning, pulping, and equipment shaft sealing, significantly reducing fresh water consumption per unit. When water usage fluctuates within the beneficiation production system, timely adjustment, storage, and consumption can be achieved through green and environmentally friendly water balance processes, preventing the discharge of production wastewater and thus realizing the company's green, environmentally friendly, and sustainable development. Utility Model Content

[0004] Large amounts of water accumulate in low-lying areas of abandoned open-pit mine pits. If this water cannot be drained in a timely manner, it will inevitably affect open-pit mining operations. Effective recycling and utilization of this pit water can reduce the consumption of fresh water in the enterprise's production system. To address the shortcomings of existing technologies, this utility model provides a green and environmentally friendly water balance system for the beneficiation process, which effectively controls the storage level of production wastewater, effectively reduces the enterprise's fresh water consumption per unit, and effectively controls the discharge of production water.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A green and environmentally friendly water balance system for a mineral processing step includes a pit water accumulation area, a main mineral processing plant, a roller mill operating area, an elevated water tank, a floating pump station, a thickener, a circulating water pump house, and a buffer tank. The floating pump station is located within the pit water accumulation area and is connected to the elevated water tank via pipelines. The elevated water tank is connected to the main mineral processing plant, the roller mill operating area, and the circulating water pump house via pipelines. A circulating water pump house and a thickener are located near the main mineral processing plant. Drainage from the main mineral processing plant is discharged to the thickener via a tailings channel. The thickener is connected to the circulating water pump house via pipelines. The circulating water pump house is connected to the main mineral processing plant's water inlet via pipelines. A buffer tank is located near the circulating water pump house and is connected to the pit water accumulation area via pipelines. An automatic leveling device is installed in the buffer tank. The roller mill operating area is connected to the main mineral processing plant via pipelines.

[0007] The floating pump station includes a floating vessel, a mounting frame, a submersible pump, and an operating platform. The submersible pump is mounted on the bottom of the floating vessel via the mounting frame. The floating vessel is hollowed out at the top and bottom at the mounting frame, and the operating platform is located at the top of the mounting frame.

[0008] Two submersible pumps are provided, one operational and one standby.

[0009] The elevated water tank is also connected to the circulating water pump room via pipelines.

[0010] The elevated water tank is equipped with sedimentation and filtration facilities.

[0011] This invention involves constructing a decomposable mobile floating pump station in a mine pit. One YQ550 submersible electric pump (one operational, one standby) is installed at the bottom of the floating pump station. A DN325 pipeline is laid to return water to a high-level water tank at the foot of the mountain. After secondary sedimentation and filtration in the high-level water tank, the water is branched off via φ219 pipelines from the high-level water tank outlet and connected to the roller mill and ore dressing areas. Two vertical booster pumps (one operational, one standby) are installed in each area, along with six DN200 butterfly valves for switching between mine pit return water and production fresh water. By effectively utilizing the sedimentation water from abandoned mine pits into the production system, the mine pit water level can be lowered promptly, reducing the unit consumption of fresh production water.

[0012] Three new 100QW80-24-11 submersible pumps (two operational and one standby) will be added to the main ring pump house water tank, and 100 meters of φ108 pipeline will be laid to the idle buffer tank. When the main floating water volume is large, the excess floating water will be transported to the buffer tank for temporary buffering and storage. In case of water shortage, water can be replenished through the floating water well at the bottom of the buffer tank. At the same time, three WQN120-260-160KW submersible pumps (two operational and one standby) will be installed in the central cylinder of the buffer tank, along with an automatic liquid level control device. The excess production water will be transported back to the abandoned mining pit through a Φ219 pipeline, effectively replenishing the mining pit water source, maximizing water balance, preventing the discharge of production wastewater, and achieving green and environmentally friendly production.

[0013] The above scheme establishes the separation process as an integrated system, forming a closed loop within the system to create an advanced treatment process system tailored to the characteristics of fresh water, circulating water, and wastewater in mine production. The wastewater reuse rate is expected to reach over 95%, achieving the recycling of production wastewater. This system features high automation, stable operation, and excellent treatment results, meeting the water quality requirements for recycled water in different production stages of the mine.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1) This utility model maximizes the utilization of water resources by comprehensively utilizing mine pit water, further reusing production wastewater for production processes or ecological replenishment. It further expands the ways in which water resources can be utilized, achieving comprehensive utilization of water resources in mining production, ecology, and other aspects. It promotes a tiered water resource utilization model, where wastewater from one stage is treated and reused in the next stage based on the water quality requirements of different water use stages, thereby improving water resource utilization efficiency.

[0016] 2) This utility model combines ecological restoration with energy conservation and consumption reduction in mine production water use, placing greater emphasis on integration with mine ecological restoration. It utilizes treated wastewater and collected rainwater for repeated recycling, achieving sustainable water resource utilization.

[0017] 3) Since its application a year ago, this utility model has produced good social and economic effects: First, it effectively controls the water level in the mining pit; second, it effectively reduces the consumption of fresh water; and third, it effectively reduces the discharge of production water.

[0018] 4) In February 2024, the water consumption per ton of concentrate produced was 2.95 t / ton, far exceeding the initial target of 2.00 t / ton of concentrate. After the application of this technology, the water consumption per ton of concentrate decreased to 2.23 t / ton in March, and the average water consumption per ton of concentrate decreased to 1.79 t / ton from April to November, significantly exceeding the target. In October, the water consumption per ton of concentrate reached 1.58 t / ton, setting a new historical record.

[0019] Since the application of this utility model, approximately 450 m³ / h of water from the quarry has been returned to the main separator and roller mill for production. While effectively slowing down the rise in the quarry water level, it can also meet the water needs of the main separator and roller mill. Based on the planned consumption of 250 m³ / h for the main separator and 150 m³ / h for the roller mill, the annual water consumption can be reduced by 3.456 million m³, generating a benefit of 4.7 million yuan.

[0020] 5) This utility model can prevent the discharge of production wastewater. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall system of this utility model.

[0022] Figure 2 This is an enlarged view of the pitted area in this utility model.

[0023] Figure 2 In the middle: 1-1 Mine pit, 1-2 Floating pump station, 1-3 Submersible electric pump, 1-4 Main water supply pipe, 1-5 Return water pipe.

[0024] Figure 3 This is a schematic diagram of a floating vessel.

[0025] Figure 3 In the middle: 1-2 floating boats, 1-6 floating boats, 1-7 operating platform, 1-8 mounting frame.

[0026] Figure 4 This is an enlarged view of the main plant and the roller mill operation area.

[0027] Figure 4 In the middle: 1-4 main water supply pipe, 3-2 high-level water tank, 3-3 main water supply pipeline for mineral processing, 3-4 water supply pipeline for roller mill production, 3-5 main plant for mineral processing, 3-6 roller mill operation area.

[0028] Figure 5 This is an enlarged view of the return water balance area at the ring water pump station.

[0029] Figure 5 In the middle section: 4-1 Water conveyance pipeline in the mining pit, 4-2 Submersible pump for the ring water, 4-3 Return water pipeline for the ring water, 4-4 Submersible pump for the return water, 4-5 Buffer pool, 1-5 Return water pipe, 4-7 Automatic level device, 4-8 Ring water pump house, 4-9 Tailings channel, 4-10 Thickening tank, 4-11 Water pipeline from thickening and settling to the ring water pump station, 4-12 Circulating water pipeline. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings. However, it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0031] See Figures 1-5A green and environmentally friendly water balance system for a mineral processing step includes a pit water accumulation area, a main mineral processing plant 3-5, a roller mill operating area 3-6, an elevated water tank 3-2, a floating pump station 1-2, a thickener 4-10, a circulating water pump station 4-8, and a buffer tank 4-5. The floating pump station 1-2 is located within the pit water accumulation area. The floating pump station 1-2 is connected to the elevated water tank 3-2 via pipelines. The elevated water tank 3-2 is connected to the main mineral processing plant 3-5, the roller mill operating area 3-6, and the circulating water pump station 4-8 via pipelines. A circulating water pump station is located near the main mineral processing plant 3-5. Pumping station 4-8 and thickener 4-10 are provided. The drainage from the main beneficiation plant 3-5 is led to thickener 4-10 via tailings channel 4-9. Thickener 4-10 is connected to the ring pumping station 4-8 via a pipeline. The ring pumping station 4-8 is connected to the water inlet of the main beneficiation plant 3-5 via a pipeline. Buffer pool 4-5 is set up near the ring pumping station 4-8. Buffer pool 4-5 is connected to the water accumulation area of ​​the mining pit via a pipeline. Automatic level device 4-7 is installed in buffer pool 4-5. Roller mill operation area 3-6 is connected to the main beneficiation plant 3-5 via a pipeline.

[0032] The floating pump station 1-2 includes a floating vessel 1-6, a mounting frame 1-8, a submersible pump 1-3, and an operating platform 1-7. The submersible pump 1-3 is installed at the bottom of the floating vessel 1-6 via the mounting frame 1-8. The floating vessel 1-6 is hollowed out at the top and bottom at the mounting frame 1-8, and the operating platform 1-7 is located at the top of the mounting frame 1-8.

[0033] There are two submersible pumps, 1-2, one active and one standby.

[0034] The elevated water tank 3-2 is also connected to the circulating water pump house 4-8 via a pipeline.

[0035] The elevated water tank 3-2 is equipped with sedimentation and filtration facilities.

[0036] This utility model consists of four process systems: the water accumulation area of ​​the mining pit; the main plant of mineral processing and the roller mill production area; and the return water area of ​​the circulating water pump station.

[0037] Settlement water in mine pit 1-1 is pressurized by submersible pump 1-3 on floating pump station 1-2 and transported to high-level water tank 3-2 for buffering and storage via main beneficiation water pipeline 1-4. Production water, after sedimentation and filtration in high-level water tank 3-2, is then transported via main beneficiation production water pipeline 3-3 and roller mill production water pipeline 3-4 to the main beneficiation plant 3-5 and roller mill operating area 3-6 respectively for use in the production system. Roller mill production wastewater and cleaning runoff enter the main beneficiation plant 3-5 and, together with runoff from the beneficiation operating area, converge in thickener 4-10 before entering the 4-8 ring water pump house water tank. Pressurized by ring water submersible pump 4-2, the production water is pumped back to the main beneficiation plant 3-5 for recycling via circulating water pipeline 4-12, thereby reducing the fresh water consumption per unit area in the roller mill and beneficiation operating areas.

[0038] Two submersible circulating water pumps 4-2 are installed in the floating well of the circulating water pump house 4-8. The remaining circulating water is transported to the buffer tank 4-5 through the circulating water return pipeline 4-3. An automatic liquid level device 4-7 is installed. When the upper limit of the liquid level is reached, the return water submersible pump 4-4 is automatically started, and the remaining wastewater is transported back to the mine pit 1-1 through the return water pipe 1-5. This realizes the overall closed loop of production water in the system, eliminates the phenomenon of production wastewater discharge, and achieves environmentally friendly green production.

Claims

1. A green and environmentally friendly water balance system for a sorting process, characterized in that, The facility includes a sump-water area, a main beneficiation plant, a roller mill operating area, an elevated water tank, a floating pump station, a thickener, a circulating water pump house, and a buffer tank. The floating pump station is located within the sump-water area and is connected to the elevated water tank via pipelines. The elevated water tank is connected to the main beneficiation plant, the roller mill operating area, and the circulating water pump house via pipelines. A circulating water pump house and a thickener are located near the main beneficiation plant. Drainage from the main beneficiation plant flows to the thickener via a tailings channel. The thickener is connected to the circulating water pump house via pipelines. The circulating water pump house is connected to the main beneficiation plant's water intake via pipelines. A buffer tank is located near the circulating water pump house and is connected to the sump-water area via pipelines. An automatic leveling device is installed in the buffer tank. The roller mill operating area is connected to the main beneficiation plant via pipelines.

2. The green and environmentally friendly water balance system for a sorting process according to claim 1, characterized in that, The floating pump station includes a floating vessel, a mounting frame, a submersible pump, and an operating platform. The submersible pump is mounted on the bottom of the floating vessel via the mounting frame. The floating vessel is hollowed out at the top and bottom at the mounting frame, and the operating platform is located at the top of the mounting frame.

3. A green and environmentally friendly water balance system for a sorting process according to claim 2, characterized in that, Two submersible pumps are provided, one operational and one standby.

4. The green and environmentally friendly water balance system for the separation process according to claim 1, characterized in that, The elevated water tank is also connected to the circulating water pump room via pipelines.

5. The green and environmentally friendly water balance system for the separation process according to claim 1, characterized in that, The elevated water tank is equipped with sedimentation and filtration facilities.

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